Commit cbd69dbb authored by Linus Torvalds's avatar Linus Torvalds Committed by Greg Kroah-Hartman
Browse files

Suspend changes for PCI core 



Changes the PCI core to use the new suspend infrastructure changes.

Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 7c8265f5

drivers/pci/pci-driver.c

+40 −1
Original line number Diff line number Diff line
@@ -264,6 +264,19 @@ static int pci_device_remove(struct device * dev) 
	return 0;

}



static int pci_device_suspend_prepare(struct device * dev, pm_message_t state)

{

	struct pci_dev * pci_dev = to_pci_dev(dev);

	struct pci_driver * drv = pci_dev->driver;

	int i = 0;



	if (drv && drv->suspend_prepare) {

		i = drv->suspend_prepare(pci_dev, state);

		suspend_report_result(drv->suspend_prepare, i);

	}

	return i;

}



static int pci_device_suspend(struct device * dev, pm_message_t state)

{

	struct pci_dev * pci_dev = to_pci_dev(dev);
@@ -279,6 +292,18 @@ static int pci_device_suspend(struct device * dev, pm_message_t state) 
	return i;

}



static int pci_device_suspend_late(struct device * dev, pm_message_t state)

{

	struct pci_dev * pci_dev = to_pci_dev(dev);

	struct pci_driver * drv = pci_dev->driver;

	int i = 0;



	if (drv && drv->suspend_late) {

		i = drv->suspend_late(pci_dev, state);

		suspend_report_result(drv->suspend_late, i);

	}

	return i;

}



/*

 * Default resume method for devices that have no driver provided resume,
@@ -313,6 +338,17 @@ static int pci_device_resume(struct device * dev) 
	return error;

}



static int pci_device_resume_early(struct device * dev)

{

	int error = 0;

	struct pci_dev * pci_dev = to_pci_dev(dev);

	struct pci_driver * drv = pci_dev->driver;



	if (drv && drv->resume_early)

		error = drv->resume_early(pci_dev);

	return error;

}



static void pci_device_shutdown(struct device *dev)

{

	struct pci_dev *pci_dev = to_pci_dev(dev);
@@ -508,9 +544,12 @@ struct bus_type pci_bus_type = { 
	.uevent		= pci_uevent,

	.probe		= pci_device_probe,

	.remove		= pci_device_remove,

	.suspend_prepare= pci_device_suspend_prepare,

	.suspend	= pci_device_suspend,

	.shutdown	= pci_device_shutdown,

	.suspend_late	= pci_device_suspend_late,

	.resume_early	= pci_device_resume_early,

	.resume		= pci_device_resume,

	.shutdown	= pci_device_shutdown,

	.dev_attrs	= pci_dev_attrs,

};

include/linux/pci.h

+3 −0
Original line number Diff line number Diff line
@@ -345,7 +345,10 @@ struct pci_driver { 
	const struct pci_device_id *id_table;	/* must be non-NULL for probe to be called */

	int  (*probe)  (struct pci_dev *dev, const struct pci_device_id *id);	/* New device inserted */

	void (*remove) (struct pci_dev *dev);	/* Device removed (NULL if not a hot-plug capable driver) */

	int  (*suspend_prepare) (struct pci_dev *dev, pm_message_t state);

	int  (*suspend) (struct pci_dev *dev, pm_message_t state);	/* Device suspended */

	int  (*suspend_late) (struct pci_dev *dev, pm_message_t state);

	int  (*resume_early) (struct pci_dev *dev);

	int  (*resume) (struct pci_dev *dev);	                /* Device woken up */

	int  (*enable_wake) (struct pci_dev *dev, pci_power_t state, int enable);   /* Enable wake event */

	void (*shutdown) (struct pci_dev *dev);